/* 共享样式：讲/练/参考标签、任务卡片、代码文件链接 —— 覆盖在 reveal white 主题之上 */

.reveal { font-size: 32px; }
.reveal h1 { font-size: 1.6em; }
.reveal h2 { font-size: 1.15em; }
.reveal h3 { font-size: 0.9em; }
.reveal section img { border: none; box-shadow: none; }

.tag {
  display: inline-block;
  padding: 1px 12px;
  border-radius: 12px;
  font-size: 0.5em;
  font-weight: 600;
  vertical-align: middle;
  margin-left: 12px;
  letter-spacing: 1px;
}
.tag-lecture { background: #2b6cb0; color: #fff; } /* 讲 */
.tag-practice { background: #2f855a; color: #fff; } /* 练 */
.tag-discuss { background: #b7791f; color: #fff; } /* 议：讨论型任务，非编码 */

.task-card {
  border-left: 6px solid #2f855a;
  background: #f4f9f5;
  padding: 14px 24px;
  margin: 14px 0;
  border-radius: 4px;
  text-align: left;
  font-size: 0.62em;
  line-height: 1.35;
}
.task-card h4 { margin: 0 0 6px 0; color: #2f855a; text-transform: none; font-size: 1.05em; }

.task-card dl.task-spec { margin: 8px 0 0 0; }
.task-card dl.task-spec dt {
  font-weight: 700;
  color: #2f855a;
  font-size: 0.85em;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-top: 10px;
}
.task-card dl.task-spec dt:first-child { margin-top: 0; }
.task-card dl.task-spec dd { margin: 3px 0 0 0; }

.ext-ref { color: #a0522d; font-style: italic; }

/* 讨论型任务卡（Day1 模块A：无编码产出，用琥珀色区分“练”的绿色） */
.task-card.discuss-card { border-left-color: #b7791f; background: #fffaf0; }
.task-card.discuss-card h4 { color: #b7791f; }
.task-card.discuss-card dl.task-spec dt { color: #b7791f; }

.filelink, code.filelink {
  font-family: 'Courier New', monospace;
  background: #eef2f7;
  padding: 1px 8px;
  border-radius: 3px;
  color: #1a4d8f;
  text-decoration: none;
  border: 1px solid #d3dce6;
}
.filelink:hover { background: #dbe6f5; }

.footer-note { margin-top: 30px; }

.verify-box {
  border: 2px dashed #b7791f;
  background: #fffaf0;
  padding: 12px 20px;
  border-radius: 6px;
  font-size: 0.6em;
  text-align: left;
}
.verify-box h4 { margin: 0 0 6px 0; color: #b7791f; }

/* 每个「讲」知识点的固定两件套：核心概念（是什么/为什么）+ 常见的坑（注意事项） */
.concept-box {
  border-left: 6px solid #2b6cb0;
  background: #ebf4ff;
  padding: 12px 22px;
  margin: 10px 0;
  border-radius: 4px;
  text-align: left;
  font-size: 0.58em;
  line-height: 1.4;
}
.concept-box h4 { margin: 0 0 6px 0; color: #2b6cb0; }
.concept-box ul { margin: 4px 0 0 20px; padding: 0; }
.concept-box li { margin: 3px 0; }

.pitfall-box {
  border-left: 6px solid #c53030;
  background: #fff5f5;
  padding: 12px 22px;
  margin: 10px 0;
  border-radius: 4px;
  text-align: left;
  font-size: 0.58em;
  line-height: 1.4;
}
.pitfall-box h4 { margin: 0 0 6px 0; color: #c53030; }
.pitfall-box ul { margin: 4px 0 0 20px; padding: 0; }
.pitfall-box li { margin: 3px 0; }

.reveal pre code { font-size: 0.68em; max-height: 480px; }

.module-badge {
  font-size: 0.4em;
  color: #a0aec0;
  letter-spacing: 2px;
  text-transform: uppercase;
}